However, this might be an annoying change for users used to having their music playback continue even when their session locks. If you don’t like this behavior, there are basically two solutions:

    Set light-locker to lock the session “When the screensaver is deactivated”
    Switch back to using xscreensaver
    Add your user to the “audio” group on your computer and  music playback will continue also with light-locker